Congrats on getting the TTH going. I'm also implementing this hashing strategy and would like both of our clients to be compatible out of the gate so as to not introduce a mess. Are you going to have external behavior identical to BCDC++?

As for searches, yes, it'll be the same as bcdc++, the getmeta I'll have to
change though because getmeta sends twice as much data as is really needed -
the leaves are enough for most purposes...the current dc++ implementation
(tth and xml) is in the cvs for the interested, it's fairly complete apart
from transferring the leaves...there's a small bug in the compression lib
though, it'll fixed in a few days when I have time.

/J